cronをシンボリックリンクにしている場合にcapistranoで権限変更をしたい ref: http://qiita.com/kazuph/items/982257cef2424634f459

deploy.rb

+set :pty, true

file3.txt

ln -s /home/your_username/your_project_name/current/misc/cron/sample /etc/cron.d/sample

sample

APP_DIR=/home/your_username/your_project_name/current
LOG_DIR=/var/log/your_project_name/cron

# 毎週火曜10:00に実行
00 10 * * 2 root su your_username -l -c "cd ${APP_DIR} && bundle exec rake sample:run RAILS_ENV=production" >> ${LOG_DIR}/sample.log 2>&1

symlink_cron.rake

namespace :symlink_cron do
  desc "change owner to root"
  task :change_permission do
    on roles(:app) do
      execute :sudo, "chmod 644 #{release_path}/misc/cron/sample"
      execute :sudo, "chown root:root #{release_path}/misc/cron/sample"
    end
  end
  after 'deploy:published', 'symlink_cron:change_permission'
end